======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '212'
                                          'artist'  "Einstein's Creation"
                                     'text_people'  'James Eric'
                                         'release'  "Cheese Alfred Pickles Spam: The Worst of Einstein's Creation"
                                           'title'  'Nazi Dixieland'
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                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '10'
                                      'tracktotal'  ''
                                            'date'  '1992'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-experimental'
                                             'bpm'  '90.4'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

======================== rawer (from filesystem) ========================

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM::eng'                                         'blog.wfmu.org'
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'COMM:iTunPGAP:eng'                                 '0'
'COMM:iTunSMPB:eng'                                 (' 00000000 00000210 00000B1C 00000000008E9CD4 00000000 0040A2F0 00000000 '
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'COMM:iTunes_CDDB_1:eng'                            '300FB015+301378+21+150+11182+24413+35712+58931+73139+89945+95138+109124+126551+137295+150970+166665+169504+185399+197408+211083+224713+239276+255438+278150'
'COMM:iTunes_CDDB_TrackNumber:eng'                  '14'
'TALB' (Album/Movie/Show title)                     "Cheese Alfred Pickles Spam: The Worst of Einstein's Creation"
'TBPM' (BPM (beats per minute))                     '90.4'
'TCOM' (Composer)                                   'James Eric'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-experimental'
'TDRC' (Recording time)                             '1992'
'TENC' (Encoded by)                                 'iTunes v7.4.3.1'
'TIT2' (Title/songname/content description)         'Nazi Dixieland'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               "Einstein's Creation"
'TRCK' (Track number/Position in set)               '10'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
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'TXXX:replaygain_track_peak'                        '0.609234'

========================== row from database ==========================
                                              'id'  660051
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/10/298_10_Einsteins_Creation_-_Nazi_Dixieland.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  212
                                           'genre'  ifs-songwriter-experimental
                                        'filesize'  4420469
                                           'mtime'  1636400806
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                                        'rest_str'   00exnnpjpsprgttidm 10 298_10_Einsteins_Creation_ _Nazi_Dixieland ifs songwriter experimental
                                      'tag_artist'  Einstein's Creation
                                     'tag_release'  Cheese Alfred Pickles Spam: The Worst of Einstein's Creation
                                       'tag_title'  Nazi Dixieland
                                             'bpm'  90.4
                                    'search_title'  'dixieland':2 'nazi':1
                                   'search_artist'  'creation':4 'einstein':1 'einsteins':3 's':2
                                  'search_release'  'alfred':2 'cheese':1 'creation':12 'einstein':9 'einsteins':11 'of':8 'pickles':3 's':10 'spam':4,5 'the':6 'worst':7
                                     'search_rest'  '10':2 '298':1 'creation':4 'dixieland':6 'einsteins':3 'experimental':9 'ifs':7 'nazi':5 'songwriter':8
                                    'search_combo'  '10':20 '298':19 'alfred':8C 'cheese':7C 'creation':6B,18C,22 'dixieland':2A,24 'einstein':3B,15C 'einsteins':5B,17C,21 'experimental':27 'ifs':25 'nazi':1A,23 'of':14C 'pickles':9C 's':4B,16C 'songwriter':26 'spam':10C,11C 'the':12C 'worst':13C
                                    'tag_tracknum'  10
                                      'num_images'  1
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-2', 'Q-HAP-2', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  1992
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636400805.836569  (2021-11-08 20:46:45)
                             'size'  4420469